Spark-arrester.



Patented Mar. 10, 1914.

W. G. GHILLIS. SPARK ARRESTER APPLICATION FILED 0O1.10, 1913.

lJll llTED PATENT @FETQE.

VIILLIAIVI Gr. CHILLIS, OF KLOTZVILLE, LOUISIANA, ASSIGNOR OI ONE-THIRD TO NICK NOTO, 0F KLOTZVILLE, LOUISIANA.

SPARYLARRESTER.

income.

Specification of Letters Patent.

'.atented Mar. 10, 19lt4t.

Application filed 0ctobcr16, 1913. Serial No. 795,545.

To all whom it may concern 130 it known that l, \VILLIAM G. (humus, a citizen of the, United States, residing at Klotzville, in the parish of itssumption State of Louisiana, have invented certain new and useful Improvements in Sparknrresters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apperta his to make and use the same.

This invention relates to new and useful improven'ients in spark arresters for smoke stacks and finds its particular adaptation when applied to the smoke stacks of locomotives.

The object of the invention resides in the provision of a device which may be readily attached to or detached from the smoke stack of a locomotive and which when in attached position ellectnally prevents the escape of sparks and cinder-s from the mouth of the stack.

A further object of the invention resides in the provision of such a device which is durable and etlicient in use and which comprises a minimum number of parts so that it may be manufactured at a comparatively low cost.

With these and other objects in view, the invention resides in the novel combination, :lormation and arrangement of parts to be more fully hereinafter described and illustrated in the accompanying drawings and particularly pointed out in the claims hereto appended.

Reference is had to the accompanying drawings wherein similar characters of reference designate corresponding parts throughout the several views, and in which:

Figure 1 is a side elevational view of the improved spark arrester applied to the smoke stack of a locomotive, Fig. 2 a top plan view of what is shown in Fig. 1, Fig. 3 a central vertical sectional view of the spark arr-ester, and Fig. t is a perspective view of the cap member.

Referring now more particularly to the drawings, 5 designates the smoke stack of a locomotive having at its upper end the usual head 6. The body member of the spark arrester comprises a frusto-conical portion 7 from the base of which extends a vertically disposed annular flange S fitting within the mouth of the stack and terminab ing in a horizontal annular [hinge t) resting on the bead ol the stack and extending outwardly thereof. This body member is secured to the stack by means of hook bolls 'ltlhaving their bills engaging the head 6 and having their shank portions passed through the flange 9 and held by nuts 11 threaded on the said shanks.

.lior directing the sparks back toward the lower portion of the stack, a dome 12 is provided. The dome has lateral arms 13 ex tending horizontally from its edge and secured at their outer ends to an annular band 14L of the same size as the flange 9 and adapted to rest thereon. The dome, arms and band may be formed integrally and the diameter of the base 01 the dome is slightly larger than the diameter of the apex of the frusto-conical body portion, it being observed that in this connection that llie body portion is inverted so that its sides serve to direct the sparks which may engage it downwardly. Escape of sparks from between the dome and the base member is prevented by a 'l'oraminous annular member 15 having its outer peripheral portion disposed between the band .lll: and llange t) and clamped by the bolts 16 securing said band and llange together. The inner peripheral portion of the member 15 is secured by the bolts 17 to the inner surface of the dome.

From the foregoing it is seen that the sparks moving upwardly with the gases through the stack will engage the dome and be directed downwardly. Those sparks which pass (nitwardly oil the dome will engage the foraminous member 15 and will fall. against the sides of the trusto-eonical body portion 7 :l'rom thence sliding into the stack. It is observed that the sparks thus all pass back into the stack and that the spark arrester does not become clogged.

lVhat is claimed is: i

1. A spark arrester comprising the com bination with a smoke stack, oi? an inverted lrusto-conical member disposed therein and secured thereto, a dome provided at its base with horizontal arms for securing it to the :lrusto-conical member and an annular 'loraminous member secured to the base of the doi'ne and to the base of the 'l'rusloconical member.

2. A spark arrester comprising the combination with a smoke stack, of an inverted frusto-conical member having an annular flange on its base resting on and secured to and band and secured to the base of the 10 the stack, a dome having its base slightly dome.

larger in diameter than the apex of the In testimony whereof, I afiix my signafrustorofnioal member, horizontal arms1 eX- ture, in the presence of two Witnesses tendin rom the dome and secured at tieir outer e nds to an annular band, said annu- WVILLIAM CHILLIS' lar band being disposed on and secured to the said annular flange and a forarninous annular member secured between the flange 1 VVit-nesses HAY l/VARD HILLS, ARTHUR BRAU'D.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

